Product Description BPI Plugging Compound is a rapid-setting, cementitious leak sealing compound designed to instantly stop active water ingress in concrete and masonry structures. Formulated for professional use, it reacts quickly with water to create a watertight seal in cracks, joints, and penetrations—even under running water conditions. Ideal for use prior to tanking systems, this high-performance compound sets in minutes, allowing fast progression onto waterproofing works. Special Features Cement based rapid setting – cures in under 2 minutes Instantly stops active water leaks Expands slightly to form a tight watertight seal Suitable for cracks, joints and service penetrations Can be used to anchor fixings Ideal prior to tanking slurry application Easy hand-mix application Typical Applicatons Stopping active water ingress in basements and cellars Sealing cracks in concrete and masonry Pipe penetrations and service entries Construction joints and voids Emergency leak sealing prior to full waterproofing Application Guide Cut out cracks/holes to approx. 20mm square Remove loose material and dampen surface Mix small amounts (usable within 2 minutes) Apply immediately and press firmly into place Hold until set (approx. 30–60 seconds) Trim flush once water flow has stopped Important: Not suitable for large voids without staged application. Only mix what can be used immediately due to rapid set time. Cannot be reworked once set. Specification Type: Cement-based rapid setting compound Set Time: Approx. 2 minutes Mix Ratio: 1 part water : 4 parts powder Colour: Grey pH: ~11 (alkaline) Pack Size: 5kg tub Health & Safety For all technical and safety data sheets please see the downloads section.
